Home / 85,267.40-117,638.16-49,437.68

Finding the Fourth Proportional to 85,267.40, 117,638.16 and 49,437.68

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Solution

The fourth proportional to 85,267.40, 117,638.16 and 49,437.68 is: 68,206.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,267.40 : 117,638.16 = 49,437.68 : x
  2. Step 2: Convert to fraction form
    85,267.40/117,638.16 = 49,437.68/x
  3. Step 3: Cross multiply
    85,267.40x = 117,638.16 × 49,437.68
  4. Step 4: Simplify right side
    85,267.40x = 5,815,757,709.87
  5. Step 5: Solve for x
    x = 5,815,757,709.87/85,267.40
  6. Step 6: Final answer
    x = 68,206.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.